It can, no, it is difficult to pull heavy yields from a pure or nearly pure sativa when grown inside unless you live next to a nuclear power plant or something. Back in 'the olden days,' the 70's, when few if any cops were looking for 'special backyard gardens' my friends and I would have 10, 12, or maybe 20 pure sativa plants that would be 10 feet, 12 feet or 15 feet tall and in a long growing season they would become hefty plants and produce very well.
Some were Mexican strains, pre-brickweed days, when there were numerous high quality Mexican sativa strains to be found, ones like Highland Oaxacan Gold, aka H.O.G., that later went into the creation of many of today's most famous strains. One I believe we grew was either the same strain that Reeferman sells, or at least something very similar, a strain he calls
Blackseed." It was a heavy producer and "Blackseed" came to be known as "the pound plant" because of it's yields. and getting a pound or more from a plant was simple. It found it's way to British Colombia where it was used in many crosses. Acapulco Gold, a Mexican strain that few referred to being Mexican because of it's high quality, they did not want to lump it in with what by the later 70's had become the infamous Mexican brickweed, was a prized possession and produced very well.
My brother in law brought home seeds when he returned from Vietnam, along with a rather large stash of herb packed into two very large stereo speakers he purchased at a PX. One strain was Dalat and it was beyond mind blowing and in a long growing season would become a sequoia tree sized plant that was heavy with buds. Another, if I remember the name right, was called Vietnamese Black.
While none had the uber-dense buds like indica strains they all more than made up for it in numbers of buds and size of buds on such massive plants. That was when growing a true sativa was fun, very fun, and very rewarding. There was no need for indica genetics to achieve yields back then. A small backyard patch would require a wheelbarrow to haul your buds around in and a large patch would almost need a dump truck and truck scales to haul it and weigh it with.
I really miss those days and I honestly do feel sorry for all those who are so unfortunate enough to have missed out on them. The quality was amazing and the chances of being busted were less than just minimal. You practically had to hang a sign out saying you were growing to get busted.
I once had a patch of Panama Red growing and it was not more than about 150 feet from a stoplight by a one way bridge. It was in clear sight from the stoplight and I could be out tending to my plants and more than once a local cop would be sitting at the stop light and glance over and watch me for a moment and never give what I was doing a second thought. It was like hiding in plain sight. They never expected that someone would do something illegal out in the open like that and there were so few growers and so few busts that when something like that was seen a light did not go off in their head telling them they should take a closer look.
Those were the days. Quality, quantity and near total security and safety without having to take any special measures to get it.